Hi Serguei, I suppose you are doing this as a personal interest to upgrade your own Telechips based tablet to 2.3/3.0? I suppose you have a full-time job and only working on this in your spare time?
I am not a programmer but I believe many propertiary components, such as video codec drivers would not be included in Telechip's public source code. That means even if you suceed in booting your own linux kernel, and even port your own Android OS over, it is likely that your ROM may not be able to fully utilize all the features of the chip itself. Did you realize think about this? or you already have a way to overcome this? Our company is working on a TCC890x based product and we can provide you with hardware as well as source codes. The development board we have runs Android 2.2 and we can get the source code, we are interested to run ubuntu on it instead of Android. I believe this can easily be achieved by an experienced platform developer. Would you be interested to help us on this? Of course, we are also interested to upgrade it to Android 3.0 as soon as it is possible. If you are, please e-mail me directly to discuss further. Cheers Eric On Mar 11, 1:58 am, mirsev <[email protected]> wrote: > On Thursday, March 10, 2011 1:06:21 AM UTC-8, MeElvis wrote: > > > Take a look at the telechips website (www.telechips.com), seems the source > > for the chip is available. > > Thank you for your advice. I already have this source... > > > The only thing you don't have are the specific addaptions for your tablet > > but maybe > > it allows you to build your own. > > There are several configuration options, and the kernel can be compiled... > But then, when I make bootable image (using this kernel and ramdisk from > clockwork recovery), and load it with fastboot, strange thing happens... > > If I enter to fastboot mode from power off state by pressing "Back" and > "Power" buttons, the kernel loads, Linux logo appears on the screen and in a > few seconds the tablet turns off (kernel crash?). > > In contrast, if I enter fastboot mode when tablet is already ON by pressing > "Back" and "Reset" buttons, the kernel boots and even runs init, starts adbd > and recovery utlity from ramdisk. I could even use adb to get logs from > dmesg and dump some /proc/* stuff to get the configurartion to compare it > with one from working kernel. Nevertheless, the tablet turns of in a few > minutes (another kernel crash?). > > Unfortunately, there are too many variables to find the working > configuration in a short time, especially without knowledge wether some > additional patches are necessary for this board or not. This is why I posted > this question, just in case if someone has already found something... > > The global idea is to migrate to Android 2.3 or even 3.0 from 2.1 that I > have and to add the ability to suspend to RAM to start faster from low power > consumption mode. I think this is impossible with the original 2.6.29 > kernel. > > Serguei. -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
